High grade hot rolled narrow strip steel

Ref Price:
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
300 m.t.
Supply Capability:
5000 m.t./month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

Definition

Edit

Strip steel

The strip generally supplied in rolls, has the advantages of high size precision,good surface quality, easy processing, material saving etc.. With the same steel plate, strip by strip material is divided into ordinary and high quality strip steel two categories; according to the manufacturing method of hot rolled strip,cold rolled strip two.

2 scope of application

Edit

Steel is widely used in the production of welded steel pipe as blank, cold-formed steel, manufacturing bicycle frame, wheels, clamps, washer, spring film,saw blade, metal products and blade etc..

Cold-formed steel

In broadband steel

The 3 process

Edit

The production process of cold rolled strip steel is generally: picklinglubrication, rolling, process, anneal and flat, cutting, packaging.

Cold rolled strip steel pickling rolling process: -- -- -- -- the size of synchronousrolling annealing lubricating antirust oil length -- -- -- flat polished package

Hot strip rolling heating furnace dephosphorization machine: -- -- -- --phosphorus removal roughing mill machine finishing mill surface quality inspection instrument -- -- -- -- layer cold coiler bundling machine -- number spraying machine -- volume base slab

The production process of hot rolling strip steel: first in the heating furnace of increasing the temperature to the desired temperature of rolling, and then oxidized to tin machine generated on the slab roller into the roughingphosphorus removal treatment, then enter the width and thickness of striproughing rolling unit rolling, iron oxide by roller conveying to phosphorus on the strip surface finishing machine produce processing, enter the width and thickness of strip finishing rolling unit for more precision rolling, strip by rollerby layer on the surface temperature of cold roll strictly control take before and after, enters the coiler for steel coil finally bundling, spraying number into thevolume storage packaging.

4 Market

Edit

In May 20th Shengfang steel prices down. According to the data Chineseindustry insight network show: Hebei forward, Sheng Bao, Bazhou Xinya, the new crown made 2.5* (232-355) steel price is 3400 yuan (ton price, the same below), down 50 yuan more than last Friday.

Influenced by Tangshan last week, small narrow billet prices, Saturday (18 days) in Shengfang area with steel mills have lowered the ex factory price. The price decline, turnover performance in general, opened today manufacturersoffer temporary stability. In addition, the Tangshan area steel prices also have lowered, 355mm strip retail pricing million in 3320-3350, with the local price difference between 50-80 yuan, relatively reasonable.

Today Tangshan small narrow band market prices show small to rise, and the futures, electronic disk also rise, but the rise of strength are insufficient. At present, the overall trend of steel spot market downturn, but the steel market is restricted by the supply pressure, the market price is the emergence of the continuing rise in prices. And will soon enter the consumer off-season, terminaldemand release rate has slowed down, expected short-term local steel marketprice is still dominated by the shock consolidation.

5 Classification

Edit

Hot rolled strip

1, hot rolled ordinary carbon structural steel (GB3524-83)

Strip steel

Hot rolled plain carbon steel with ordinary carbon structural steel as material,made of 1.80-6.00mm hot rolled strip thickness, width of 50-1200mm.

(1) the main purposes

Mainly used for cold rolling billet, cold-formed steel billet, welded steel pipebillet and bicycle, hardware products manufacturing.

(2) grade and chemical composition of materials

Standards and grades

National standard

Quite foreign standard

Function and use

Material categories

The implementation of standards

Grade

Standard No.

Grade

Suitable for manufacturing of cold forming parts

Low carbon steel coil

Q/BQB302

SPHC

JISG3131

SPHC

SPHD

SPHD

SPHE

SPHE

SAE1006/SAE1008

SAE1006/SAE1008

XG180IF/200IF

XG180IF/200IF

Steel for general structure

GB/T912-1989

Q195

JISG3101

SS330

For general construction of buildings, bridges, ships, vehicles, etc.

Q235B

SS400

SS400

SS490

ASTMA36

SS540

(3) the mechanical properties

The nominal thickness

The yield strength (Mpa)

Tensile strength (Mpa)

Elongation of A50mm%

The 180 degree bend test

>1.5-2.5

Less than or equal to 290

More than 310

More than 38

D=0a

>2.5-3.0

Less than or equal to 290

More than 300

More than 38

D=0a

>3.0-4.0

Less than or equal to 290

More than 300

More than 40

D=1/2a

Use of hot-rolled steel 2, bicycle (GB3645-89)

Bicycle for hot rolled wide strip steel in carbon steel and low alloy steel asmaterial, made of 1.8-8.0mm strip steel thickness after hot rolling, the strip width can reach 1300mm.

(1) the main uses special for bicycle manufacturing materials.

(2) grade and chemical composition of materials

(3) the mechanical properties

(4) strip (board) size

The thickness of the steel plate strip thickness 1.8-6.0mm, 7, 8.0mm.

Strip (board) width: rimming steel is less than or equal to 1300mm (a=2.0-6.0)

Killed steel is less than or equal to 1250mm (a = 3)

Less than or equal to 1300mm (a = 3)

The length of the plate, steel coil diameter 760mm, 4-6m plate.

Hot rolled strip with 3, bicycle (GB3647-89)

(1) the main purposes

Bicycle designed for the manufacture of hot rolled strip of bicycle and the chain, also can be used for cold rolled and welded pipe blank blank.

(2) grade and chemical composition of materials

(3) the mechanical properties

(4) the specification of strip

Bicycles are generally used for hot rolled strip steel strip thickness of 1.8-8.0mm, width of 60-250mm.

Hot rolled strip with 4, pressure vessel (GB5681-85)

(1) the main purposes

Used in the manufacture of low pressure vessel.

(2) grade and chemical composition of materials

(3) the mechanical properties

(4) the specification of strip and production unit

Pressure vessel is generally used for hot rolled strip steel strip thickness of 4mm, width of 80mm double length, length of not less than 70m (volume).

Cold rolling of strip

(1) the main purposes

Cold-rolled carbon steel for the manufacture of bicycles, sewing machines,agricultural machinery and other accessories and hardware products.

(2) grade and chemical composition of materials

Grade

Supply standard

Supply size

Use

SPCC

Q195

Q235-B

GB/T912

GB/T3274

Width

Mm

Thickness

Mm

Widely used in engineering machinery, transportation machinery, construction machinery, hoisting machinery


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What are the sectors in which galvanized steel strips can be used?
Same as steel plate, strip steel is divided into two kinds of ordinary strip steel and high quality strip steel according to the material used, and two kinds of hot-rolled strip steel and cold rolled strip steel according to processing method. Strip steel is widely used in the production of welded steel pipe, made of cold formed steel billet, manufacturing bicycle frame, rim, clamp, gasket, spring, saw blades, hardware and blades. The use of hot galvanized strip is naturally associated with the application of galvanized strip in construction, light industry, automobile, agriculture, animal husbandry, fishery and business. Now, with the improvement of various industries, electronics and other manufacturing processes, the application of materials is also more and more widespread.
Q:What's the difference between strip 235 and 235b?
235B only requires a temperature environment of 20 degrees C; this is because of their chemical composition of sulfur, S, phosphorus, P content indicators caused by different.The 235 is 235A, 235 in the material according to the sulfur phosphorus content from high to low is divided into ABCD four grades, grade a sulfur phosphorus was the highest relative performance (welding, plasticity) is the worst, D performance is the highest, the lowest content of parathion.
Q:What's the meaning of "double light" in strip cold rolling?
Strip strip coiling: general supply, with high dimensional accuracy, good surface quality, easy processing, material saving and other advantages. With the same steel plate, strip by strip material is divided into ordinary and high quality strip two; according to the processing method of cold rolled strip steel hot strip, two.
Q:What are the advantages of cold rolling and cold rolling strip steel?
Cold: hot rolled steel coil as raw material by pickling descaling after cold rolling, the finished rolling hard volumes, due to continuous deformation caused by cold hardening the volume rolling hard strength, hardness, toughness index rise decline, so the stamping performance will deteriorate, only for a simple deformation of parts.
Q:Where is the lining board made of polyurethane lining? Please contact immediately
I don't know where to use it,Wear resistant lining board is based on the use of the environment and requirements for the product design, the earliest silo chute used in wear-resisting lining board is made of PE material fabrication and installation, but in use, PE liner wear, service life, leading to the use of units often change, very inconvenient, but also affect the normal purchase and shipment. PE material hardness is very high, food and other food raw materials in the process of loading and unloading, and PU lining plate contact parts, food will be a large number of broken, seriously affecting the quality of grain. Therefore, polyurethane wear-resistant lining board arises at the historic moment. Polyurethane wear-resistant lining board, as an elastomer product, has very high abrasion resistance and resilient cushioning performance.
Q:The degreasing time is too long, will the strip surface be oxidized?
Sheet metal pretreatment, degreasing total alkalinity is recommended in 15-20, alkali spent large, must be short time processing, for a long time will make the metal crystal nucleus passivation, influence phosphating film. Sheet metal general oil should not be cleaned, especially stamping parts, etc., it is recommended to use degreasing temperature, the temperature can be 65-75 degrees.
Q:What about the strip scraping in the annealing furnace?
Thus forming an air knife scratch. This kind of defect causes the product to be wasted because the coating is scratched. Proper control of strip tension in productionForce and adjust the nozzle distance, can avoid this kind of defect happen.
Q:What is cold rolled strip and hot rolled strip? Why is it called strip steel?
When the cold rolled steel strip is processed and shaped, the raw material is made at the normal temperature, so the mechanical properties of the steel strip are crisp and hard and have good elasticity.
Q:What is the difference between strip steel and silicon steel?
Strip steel is a kind of narrow and long steel plate produced by various rolling mills to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Strip steel, also known as steel strip, is within 1300mm in width, and the length varies slightly according to the size of each roll. The strip is supplied in general, and has the advantages of high dimensional accuracy, good surface quality, easy processing and material saving. Same as steel plate, strip steel is divided into two kinds of ordinary strip steel and high quality strip steel according to the material used, and two kinds of hot-rolled strip steel and cold rolled strip steel according to processing method.
Q:Can cold rolled strip be plated with white zinc?
Rust removal will affect the quality of the plating. The rusted part must be polished with sandpaper to allow it to be the same as the surface roughness without rust around it.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range